Which of the following is corrected 1. Test show beta stock of individual are unstable over time beta of large portifolos are reasonably stable over time 2, Richard Bell has argue  that it is  possible the CAPM to see if it is cporrect

3. Test have shown that the beta of individuals stock are stable over time but the beta of large portfolio Add to dictionary  are much less stable.

4. The most  widley cited of the validity of the capm is one performed by modiglian and Miller 5Test  have shown that the risk return relationship appears to be linear but the slope of the relationship is greate than  that predicted by the CAPM.